The largest proportion of app crashes from both iOS and Android platforms were on iOS 5.01 with 28.64% of overall crashes (in a normalized data set). That makes sense since iOS 5 was still relatively new at that time and many apps still need to work out the kinks with the new OS. But there are also older iOS versions that have a significant proportion of app crashes. For example, iOS 4.2.10 had 12.64% of app crashes, iOS 4.3.3 had 10.66% and iOS 4.1 had 8.24%. One other point that this made clear to me is that many people apparently take their time updating their iPhone software or never update it at all.
The data raises two main questions for me: why do apps on these operating systems crash so much, and do iOS apps crash more than Android apps? On the first question of why apps crash, the reasons are many, says Crittercism CEO Andrew Levy. This can be due to hardware issues, such as the use of location or GPS services or cameras; it could be due to the Internet connection, that is, how a phone connects to 3G or WiFi, or that the device is not connected to the Internet at a certain moment, or that something happens during the switch between 3G and WiFi. There could also be issues with language support on certain devices. There can also be memory problems if an app uses too much memory.
